The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 2001
Filed:
Dec. 17, 1999
Edward A. Rainous, Cincinnatti, OH (US);
Daniel J. Barber, Cincinnatti, OH (US);
Edward C. Vickers, Cincinnatti, OH (US);
Gregory P. Maue, Cincinnatti, OH (US);
William E. Cody, West Chester, OH (US);
Sharon L. Yee, Cincinnati, OH (US);
Kevin W. McMahan, Cincinnati, OH (US);
General Electric Company, Cincinnati, OH (US);
Abstract
A retainer which, in an exemplary embodiment of the invention, is used in a gas turbine engine inter-stage seal assembly to retain an annular seal ring flange of a seal ring against an annular platform flange extending radially inwardly from an inner platform of an annular nozzle stage having nozzle vanes. The retainer includes a body having a central portion through which a bore is formed around a bore axis and a central tab extends radially outwardly from the central portion with respect to the bore axis. First and second arms, respectively, extend in opposite respective first and second tangential directions, with respect to the bore axis, away from the central portion and each other. Axial spacers extend aftwardly from first and second free ends of the first and second arms, respectively and anti-rotation feet with rounded ends depend from the first and second free ends in an opposite direction from which the central tab extends. A pedestal assembly extends aft from the central portion and is located aft of the central tab. In the exemplary embodiment, the pedestal assembly has a semi-annular cylindrical inner surface circumscribed around the bore axis and a semi-annular cylindrical outer surface wherein the semi-annular cylindrical outer surface extends between generally parallel spaced apart radially inner and outer flats, respectively with respect to the bore axis, and the radially inner flats are coplanar and the radially outer flats are coplanar. Chamfers are formed along the radially inner and outer flats, respectively. The retainer is an integrally cast unit including the body, the central portion, the central tab, the first and second arms, the axial spacers, the anti-rotation feet, and the pedestal assembly.